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Diffstat (limited to 'polarssl/src/library/asn1parse.c')
-rw-r--r--polarssl/src/library/asn1parse.c260
1 files changed, 0 insertions, 260 deletions
diff --git a/polarssl/src/library/asn1parse.c b/polarssl/src/library/asn1parse.c
deleted file mode 100644
index 2584774..0000000
--- a/polarssl/src/library/asn1parse.c
+++ /dev/null
@@ -1,260 +0,0 @@
-/*
- * Generic ASN.1 parsing
- *
- * Copyright (C) 2006-2011, Brainspark B.V.
- *
- * This file is part of PolarSSL (http://www.polarssl.org)
- * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
- *
- * All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#include "polarssl/config.h"
-
-#if defined(POLARSSL_ASN1_PARSE_C)
-
-#include "polarssl/asn1.h"
-
-#if defined(POLARSSL_BIGNUM_C)
-#include "polarssl/bignum.h"
-#endif
-
-#include <string.h>
-#include <stdlib.h>
-#include <time.h>
-
-/*
- * ASN.1 DER decoding routines
- */
-int asn1_get_len( unsigned char **p,
- const unsigned char *end,
- size_t *len )
-{
- if( ( end - *p ) < 1 )
- return( POLARSSL_ERR_ASN1_OUT_OF_DATA );
-
- if( ( **p & 0x80 ) == 0 )
- *len = *(*p)++;
- else
- {
- switch( **p & 0x7F )
- {
- case 1:
- if( ( end - *p ) < 2 )
- return( POLARSSL_ERR_ASN1_OUT_OF_DATA );
-
- *len = (*p)[1];
- (*p) += 2;
- break;
-
- case 2:
- if( ( end - *p ) < 3 )
- return( POLARSSL_ERR_ASN1_OUT_OF_DATA );
-
- *len = ( (*p)[1] << 8 ) | (*p)[2];
- (*p) += 3;
- break;
-
- case 3:
- if( ( end - *p ) < 4 )
- return( POLARSSL_ERR_ASN1_OUT_OF_DATA );
-
- *len = ( (*p)[1] << 16 ) | ( (*p)[2] << 8 ) | (*p)[3];
- (*p) += 4;
- break;
-
- case 4:
- if( ( end - *p ) < 5 )
- return( POLARSSL_ERR_ASN1_OUT_OF_DATA );
-
- *len = ( (*p)[1] << 24 ) | ( (*p)[2] << 16 ) | ( (*p)[3] << 8 ) | (*p)[4];
- (*p) += 5;
- break;
-
- default:
- return( POLARSSL_ERR_ASN1_INVALID_LENGTH );
- }
- }
-
- if( *len > (size_t) ( end - *p ) )
- return( POLARSSL_ERR_ASN1_OUT_OF_DATA );
-
- return( 0 );
-}
-
-int asn1_get_tag( unsigned char **p,
- const unsigned char *end,
- size_t *len, int tag )
-{
- if( ( end - *p ) < 1 )
- return( POLARSSL_ERR_ASN1_OUT_OF_DATA );
-
- if( **p != tag )
- return( POLARSSL_ERR_ASN1_UNEXPECTED_TAG );
-
- (*p)++;
-
- return( asn1_get_len( p, end, len ) );
-}
-
-int asn1_get_bool( unsigned char **p,
- const unsigned char *end,
- int *val )
-{
- int ret;
- size_t len;
-
- if( ( ret = asn1_get_tag( p, end, &len, ASN1_BOOLEAN ) ) != 0 )
- return( ret );
-
- if( len != 1 )
- return( POLARSSL_ERR_ASN1_INVALID_LENGTH );
-
- *val = ( **p != 0 ) ? 1 : 0;
- (*p)++;
-
- return( 0 );
-}
-
-int asn1_get_int( unsigned char **p,
- const unsigned char *end,
- int *val )
-{
- int ret;
- size_t len;
-
- if( ( ret = asn1_get_tag( p, end, &len, ASN1_INTEGER ) ) != 0 )
- return( ret );
-
- if( len > sizeof( int ) || ( **p & 0x80 ) != 0 )
- return( POLARSSL_ERR_ASN1_INVALID_LENGTH );
-
- *val = 0;
-
- while( len-- > 0 )
- {
- *val = ( *val << 8 ) | **p;
- (*p)++;
- }
-
- return( 0 );
-}
-
-#if defined(POLARSSL_BIGNUM_C)
-int asn1_get_mpi( unsigned char **p,
- const unsigned char *end,
- mpi *X )
-{
- int ret;
- size_t len;
-
- if( ( ret = asn1_get_tag( p, end, &len, ASN1_INTEGER ) ) != 0 )
- return( ret );
-
- ret = mpi_read_binary( X, *p, len );
-
- *p += len;
-
- return( ret );
-}
-#endif /* POLARSSL_BIGNUM_C */
-
-int asn1_get_bitstring( unsigned char **p, const unsigned char *end,
- asn1_bitstring *bs)
-{
- int ret;
-
- /* Certificate type is a single byte bitstring */
- if( ( ret = asn1_get_tag( p, end, &bs->len, ASN1_BIT_STRING ) ) != 0 )
- return( ret );
-
- /* Check length, subtract one for actual bit string length */
- if ( bs->len < 1 )
- return( POLARSSL_ERR_ASN1_OUT_OF_DATA );
- bs->len -= 1;
-
- /* Get number of unused bits, ensure unused bits <= 7 */
- bs->unused_bits = **p;
- if( bs->unused_bits > 7 )
- return( POLARSSL_ERR_ASN1_INVALID_LENGTH );
- (*p)++;
-
- /* Get actual bitstring */
- bs->p = *p;
- *p += bs->len;
-
- if( *p != end )
- return( POLARSSL_ERR_ASN1_LENGTH_MISMATCH );
-
- return 0;
-}
-
-
-/*
- * Parses and splits an ASN.1 "SEQUENCE OF <tag>"
- */
-int asn1_get_sequence_of( unsigned char **p,
- const unsigned char *end,
- asn1_sequence *cur,
- int tag)
-{
- int ret;
- size_t len;
- asn1_buf *buf;
-
- /* Get main sequence tag */
- if( ( ret = asn1_get_tag( p, end, &len,
- ASN1_CONSTRUCTED | ASN1_SEQUENCE ) ) != 0 )
- return( ret );
-
- if( *p + len != end )
- return( POLARSSL_ERR_ASN1_LENGTH_MISMATCH );
-
- while( *p < end )
- {
- buf = &(cur->buf);
- buf->tag = **p;
-
- if( ( ret = asn1_get_tag( p, end, &buf->len, tag ) ) != 0 )
- return( ret );
-
- buf->p = *p;
- *p += buf->len;
-
- /* Allocate and assign next pointer */
- if (*p < end)
- {
- cur->next = (asn1_sequence *) malloc(
- sizeof( asn1_sequence ) );
-
- if( cur->next == NULL )
- return( POLARSSL_ERR_ASN1_MALLOC_FAILED );
-
- cur = cur->next;
- }
- }
-
- /* Set final sequence entry's next pointer to NULL */
- cur->next = NULL;
-
- if( *p != end )
- return( POLARSSL_ERR_ASN1_LENGTH_MISMATCH );
-
- return( 0 );
-}
-
-#endif